Resampling of a Diffusion MRI file for tractography

Hello all,

In diffusion based MRI in one .nii file we have acquisitions over 32 different directions to capture the fiber orientations in different directions. So, in research papers it has been mentioned that all these 32 acquisitions in that .nii files are combined and resampled into 100 different pre-defined directions. What is the purpose and advantage of doing this for fiber tractography?

I had got the answer. The thing why we do resampling over 100 directions is that we want the data to be independent of the acquisition scheme. Some images can have 32 acquisitions and some can have 6 acquisitions.